Personal GPS navigation device

• US 7,925,429 B2
• Filed: 11/12/2008
• Issued: 04/12/2011
• Est. Priority Date: 06/02/2003
• Status: Expired due to Term

• Current Assignee: TomTom Navigation B.V (TomTom NV)
• Original Assignee: TomTom International BV (TomTom NV)
• Inventors: Geelen, Pieter
• Primary Examiner(s): Black; Thomas G
• Assistant Examiner(s): Louie; Wae
• Application Number:
  US12/292,128
• Publication Number:
  US 20090150064A1
• Time in Patent Office: 881 Days
• Field of Search: 701/213, 701/216, 701/301, 701/117, 701/200, 701/201, 701/212, 345/419, 345/418
• US Class Current: 701/201
• CPC Class Codes: G01C 21/3635 Guidance using 3D or perspective road maps
• CPC Class Codes: G01C 21/367 Details, e.g. road map scale, orientation, zooming, illumination, level of detail, scrolling of road map or positioning of current position marker
• CPC Class Codes: G01C 21/3682 output of POI information on a road map G01C21/3614, G01C21/3685 take precedence
• CPC Class Codes: G01S 19/24 Acquisition or tracking or demodulation of signals transmitted by the system synchronisation aspects of direct sequence spread spectrum modulation H04B1/7073
• CPC Class Codes: G06F 16/245 Query processing

Abstract

A navigation device is disclosed. In at least one embodiment, the navigation device includes a storage device to store map information;

• a processor to determine a route of travel based upon a current position of the navigation device and an input or selected destination position; and
• a display to display the current position on the map information corresponding to the determined route of travel, the display including relatively more detail of the map information being displayed upon the processor determining that a speed of a vehicle, in which the navigation device is located, is below a threshold speed.

Claims

1. A navigation device, comprising:

a storage device to store map information;

a processor to determine a route of travel based upon a current position of the navigation device and an input or selected destination position; and

a display to display a first level of detail of the map information corresponding to the determined route of travel while a vehicle, in which the navigation device is located, is determined by the processor to be travelling at a speed at least equal to a threshold speed, and to display a second level of detail of the map information upon the processor determining that the speed of the vehicle, in which the navigation device is located, is below the threshold speed, the second level including relatively more detail than the first level of detail.

2. The navigation device of claim 1, wherein a level of detail of the map information displayed relatively increases as the speed of the vehicle in which the navigation device is located relatively decreases.

3. The navigation device of claim 1, wherein a level of detail of the map information displayed progressively increases as threshold speeds are reached.

4. The navigation device of claim 1, wherein the display returns to a normal level of detail of the map information, upon the speed of the vehicle reaching the threshold.

5. A method, comprising:

storing map information in a storage device of a navigation device;

determining a route of travel based upon a current position of the navigation device and an input or selected destination position;

and

displaying a first level of detail of the map information, on a display of the navigation device, of the map information corresponding to the determined route of travel while a vehicle, in which the navigation device is located, is determined by the processor to be travelling at a speed at least equal to a threshold speed, and the displaying including a second level of detail of the map information upon the processor determining that the speed of the vehicle, in which the navigation device is located, is below the threshold speed, the second level of detail including relatively more detail than the first level of detail.

6. The method of claim 5, wherein a level of detail of the map information displayed relatively increases as the speed of the vehicle in which the navigation device is located relatively decreases.

7. The method of claim 5, wherein a level of detail of the map information displayed progressively increases as threshold speeds are reached.

8. The method of claim 5, wherein the display returns to a normal level of detail of the map information, upon the speed of the vehicle reaching the threshold.